Escapement for spring-motors.



F. MAGIDSON.

ESCAPEMENT FOR SPRING MOTORS.l n

APPLICATION FILED IuLY I5, I9Ie.

1 92 l 2.789, Patented' Jan. 16, 1917.

Illl.

` l KISSES 1 INvENrR mr :Immers versus ro.. pwnmu'nm. wAsnma ruw. D c.

JACOB, DAVIS, or uNIoN'roWN, PENNSYLVANIA.

EscArEMENrroR srrtING-Morons.

To aZZ inkom t mayconcem:

' Be itknown that I, FRANK MAGIDsoN,a

citizen of the rUnited States, and'fre'sident of: Brownsville, in the county. of Fayette and. State of Pennsylvania, .have invented certalnV new and useful Improvements in Escapement for Spring-Motors, of which the following. is a specification.

The lprimary object of this invention and improved` construction for imparting vibratory lmovement from a spring motor.. While the mechanism is designed prima-` rily for rocking a cradle, atmay-be variously employed for controlling the escapement of the power spring of a spring motor.

In the accompanying'drawings, Figure 1 is a longitudinal sectional elevation of spring motor mechanism embodyingthe invention. Fig. 2-is a crossI sectional elevation of the mechanism, taken on line 2'-22of Fig. 3, and Fig. 3 is asectiontaken4 on Iline 3 3 of Fig. 2. Fig. 4 is a sectional plantaken on line 4-4 oflFig.- 2. v

motor casing here show-n rectangular in cross-section, and arranged centrally therein is a core which may be' variously-constructed but which in the preferredadaptation consists of the rotatable intermediate sections 3,

rotatable end section 4, and the opposite nonrotatable end section 5, the latterl supported by the leg-forming pin 6 conned the diagonally opposite corners of casing 2.

Where independently rotatable core sections are employed as here shown they may be mounted on and held in operati-ve relation to each other by the rod or shaft 7. The

central core sections are embracedby the elongated coiled spring 8, one end of which is anchored to leg or support'j6, and the opposite end is secured to the end core sections 4.

' Secured to core section 4 is ratchet wheel 9, and secured to and extending outwardly from this wheel is short shaft 10. This shaft is rotatably mounted in casing head v11, and the projecting portion thereof is squared at 10 to receive a winding crank. Thebearing for shaft 10 comprises a hub 12 which projects from the inner side of head 11.

The escapement mechanism is interposed between ratchet wheel 9 and casing head 11, and in the embodiment here shown consists of two radially disposed supports 13 and 14 Specification of Letters Patent. i l Y .Application filed J'uly 15, 1916. Serial No. 109,424. u

is to provide escapement mechanism of simple Referring to the drawings, 2 designates awww; 16,1917'.-

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which extend outwardly past oppositeporl tions of the notched-.periphery of thef wheel. Support 13 is immovably'aheld,l the inner portion 15; thereof embracing and 'rigid with hub 12. l-Thesupport .14,disposed oppositely to support113, has its inner portion enlarged at 1'6'and fitted to oscillate about hub` 12, and the outerextremity of support 14 is projected through a slot in casing 2 asshown at 14ffortransmitting vibratory movement to a cradle body or/other deviceto be actuated bythe motor.` v ,f

Pivoted to the outer portion ofsupport 13 is dog-17,v and to thexcorresponding portion of support .14 is pivoted thereversely disposeddog 18..k These dogs are of like con-I struction,beingwangular in shape with theV outer? portionsflf and .185', respectively, thereofadapted to coperate with the teeth of wheel 9.l A free portion of each dog' extendsinwardly toward shaft 10. and hub 12,l and secured thereto, respectively, *are the outer ends of coiled. springs 19 and 20. The

inner end .of sp'ringla19, is secured `to lateralil extension 16 ofenlargement lfof the oscil-` lating .support 14, `while the innerY end' of spring 20 is-similarly secured to Vlateral eX- tens'ion 15 vof enlargementfl of fixedsupport :13. To :.accomplishthis, .enljargement'l i is slotted at 16 to pass thelateral extension 15 of the fixed support.v 'Support 14 is mov-f vably secured to the Xed support and guided by the screw and slot connections 21.

Operatlon: Upon imparting Vmotion to the cradle or other body connected to the escape-` ment mechanism, support 14 is caused' to vibrate, and movement to the right from the position shownin Fig. 4 2 causes spring 20 to move dog 18 out of engagement' with the ratchet wheel, this movement resulting from the fact that the inner; end of spring 20 is immovably heldlat 16 while dog 18 is moving with support 14. This same movement of support 14 flexes spring 19 in such manner as to throw dog 16' into, engagement with Wheel 9, thismovement resulting from the fact that the inner end of spring `19 moves with support y14, thereby causing dog 17 to pivot` in the manner described. On the-'backward oscillation of support 14, z'. e., from right to left, the above described operation is reversed, at'such timethe action of spring 20 causing dog 18 to engage the ratchet wheel, while force isso applied to .spring 19 as to causeit to disengage dog '17.

Uponstopping the oscillation ofthe cradle or other body, Vthe escapement'mecha-l nism is brought toY a` standstill, and' the dog then in engagement with-the ratchetwheei will hold the motor stationary until motionv is again imparted to thecradle or other body. 'Ihe spring motor mechanism per se herein disclosed' forms the subjectmatter of" my application filed July 15, 19M, Serial No.V

I claimt--v Y l. The combination of a ratchet Wheeli, two supports; adjacent opposite portions: or'

the. Wheel periphery with onexsupport imi-.- movable and thel other adapted. toV oscilllate concentrfcally withV the wheel, dogs' piuoted to the supports and adaptedV to cooperate with Opposite portions: of the Wheel", and

means connecting the dogs*V 'withw the tibrat` ing support whereby they' are actuated simultaneously reverse directions. with one dog engaging the wheel andthe lother dog'- disengaging thesame.

2. An escapement mechanism comprising' a spring impelled ratchetwlre'el, two pivoted dogs adapted to coperate with diii'erent portions,l of the/wheet, an immovable .support for one dog, an oscillating support tor" the other dog, an actuating spring for each dog' connected at one Lend thereto, .andl holding devices for the opposite ends of said springs, the holding device for that spring which cooperates W-ith the dog mounted on the ianports extending radially Vand in different directi'ons from the wheel; center, one of theV Vsupports? beingfimmovableand the other support adapted to oscillate about the wheel center,A two. dogs pivoted respectively'to the supports andv adapted to coperate with different portions of the wheel' periphery, an actuating spring for eachV dog-` connected thereto and extending toward the wheel center, and securing devices for the inner ends of the springs, the sen-uringv device .for the spring: on that ldogI pivoted. .to the immovable support being7 adapted to vibrate, and the seotiringdevice for the-spring ot that dog pivotedl to the vibrating snpport being immovable. Y 'Y f i 4t. The combination. of aV spring iinpelfled; ratchet wheel, two supports extending radiatly Vtrom the wheel: center witlirone-support adapted toV oscillate about said center and' with the.v other snpport. immovable, two. dogs'y pivoted 'tolthe respective; supports and adapted toeoperate, with opposite portions or the wheel periphery, actnaetiugysprings secured at theironter ends to the; dogs and extending inward-1y ,toward thewheel Center holding means; on theA immovable support for the inner end 'of the springL that cooperates wth vthe 'dog of the movable support and holding means-on the movable support. for the `inner end ofthe spring that'cooperates with the dog ofthe immovable support.

In testimony whereof I aiiX my signature in presence of two witnesses. v

v FRANK MAGID-SON.

Witnesses: Y Y I JosmrnY BUSH, NELIJE: SrRrNeER.

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